The phrase "give pink slip" is often used to describe the act of firing or dismissing an employee from their job. The opposite of this action would be to hire or employ someone. Other antonyms for "give pink slip" include retaining an employee, promoting an employee, or offering job security. In a more general sense, antonyms for the word "give" could include keep, hold, or protect, while antonyms for "pink slip" could include job security, promotion, or raise. No matter the situation, it's always important to consider alternative solutions before resorting to the drastic action of firing someone.